This is a 48P, 76T Spur Gear for models with Traxxas Torque Control Slipper Clutch. FEATURES: 48 pitch 76 tooth Designed for models with a slipper clutch. Black plastic construction INCLUDES: One spur gear SPECS: Pitch: 48 Tooth: 76 COMMENTS: For this slipper clutch design there is also a 86T gear (TRAC4686), 83T gear (TRAC4683) and 90T gear (TRAC4690). ajw 9-20-06 ir/jxs